164878275 has 12 divisors (see below), whose sum is σ = 272598872. Its totient is φ = 87935040.

The previous prime is 164878271. The next prime is 164878277. The reversal of 164878275 is 572878461.

It is not a de Polignac number, because 164878275 - 2² = 164878271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164878271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1099114 + ... + 1099263.

Almost surely, 2^164878275 is an apocalyptic number.

164878275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

164878275 is a deficient number, since it is larger than the sum of its proper divisors (107720597).

164878275 is a wasteful number, since it uses less digits than its factorization.

164878275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2198390 (or 2198385 counting only the distinct ones).

The product of its digits is 752640, while the sum is 48.

The square root of 164878275 is about 12840.4935652801. The cubic root of 164878275 is about 548.3457456830.

The spelling of 164878275 in words is "one hundred sixty-four million, eight hundred seventy-eight thousand, two hundred seventy-five".